What airlines fly to Sydney?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Sydney from Louisville according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

Delta and United Airlines are the most popular carriers operating from Louisville Intl to Sydney Kingsford Smith

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of January 2026.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$553 Cheap Flights from Louisville to Sydney in 2026

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Find the cheapest flights from Louisville to Sydney

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:35 am - 8:30 am

SDF

SYD

34h 55m2 stops

10:40 am - 5:01 pm

SYD

SDF

22h 21m2 stops

$1,169Delta

Wed, Feb 4 - Wed, Feb 11

11:01 am - 6:35 am

SDF

SYD

29h 34m2 stops

9:15 am - 11:59 pm

SYD

SDF

28h 44m2 stops

$1,170Delta

Mon, May 4 - Sun, May 17

3:05 pm - 7:30 am

SDF

SYD

25h 25m2 stops

9:15 am - 10:43 pm

SYD

SDF

27h 28m2 stops

$1,220Delta

Thu, Mar 19 - Sun, Apr 5

7:00 am - 8:30 am

SDF

SYD

33h 30m2 stops

10:40 am - 7:02 pm

SYD

SDF

24h 22m2 stops

$1,270Delta

Fri, Feb 6 - Fri, Feb 13

9:15 am - 7:00 am

SDF

SYD

29h 45m1 stop

11:50 am - 7:51 pm

SYD

SDF

24h 01m1 stop

$1,273United Airlines

Sat, Feb 14 - Wed, Feb 18

3:15 pm - 9:15 am

SDF

SYD

26h 00m2 stops

12:10 pm - 8:09 pm

SYD

SDF

23h 59m2 stops

$1,277United Airlines

Sat, Feb 14 - Wed, Feb 18

9:15 am - 7:00 am

SDF

SYD

30h 45m1 stop

11:20 am - 2:31 pm

SYD

SDF

42h 11m2 stops

$1,282United Airlines

Mon, Mar 9 - Mon, Mar 30

3:30 pm - 9:05 am

SDF

SYD

26h 35m2 stops

10:30 am - 10:39 pm

SYD

SDF

51h 09m2 stops

$1,286United Airlines

Mon, Mar 9 - Mon, Mar 30

3:30 pm - 7:00 am

SDF

SYD

24h 30m1 stop

11:20 am - 2:31 pm

SYD

SDF

42h 11m1 stop

$1,292Air New Zealand

Mon, Mar 9 - Mon, Mar 30

1:58 pm - 9:15 am

SDF

SYD

28h 17m2 stops

9:30 am - 10:39 pm

SYD

SDF

27h 09m2 stops

$1,369United Airlines

Thu, Mar 19 - Sun, Apr 5

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Qantas Airways

May 4

SDF5:42 pmLouisville Intl

24h 33m

2 stops

SYD8:15 amSydney Kingsford Smith

May 17

SYD12:00 pmSydney Kingsford Smith

21h 24m

1 stop

SDF7:24 pmLouisville Intl

$1,804

Qantas Airways

Jun 10

SDF7:43 pmLouisville Intl

21h 12m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 17

SYD12:00 pmSydney Kingsford Smith

25h 25m

1 stop

SDF11:25 pmLouisville Intl

$2,022

Qantas Airways

Jun 9

SDF7:43 pmLouisville Intl

21h 12m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 17

SYD12:00 pmSydney Kingsford Smith

19h 31m

1 stop

SDF5:31 pmLouisville Intl

$2,023

Air Canada flights from Louisville to Sydney

Our best Air Canada deals on Louisville to Sydney flight tickets

Air Canada

Feb 14

SDF5:35 amLouisville Intl

36h 00m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 18

SYD11:20 amSydney Kingsford Smith

26h 53m

2 stops

SDF10:13 pmLouisville Intl

$2,110

Air Canada

Feb 14

SDF9:00 amLouisville Intl

32h 35m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 18

SYD11:20 amSydney Kingsford Smith

26h 53m

2 stops

SDF10:13 pmLouisville Intl

$2,134

Air Canada

Feb 14

SDF5:35 amLouisville Intl

36h 00m

3 stops

SYD9:35 amSydney Kingsford Smith

Feb 18

SYD11:20 amSydney Kingsford Smith

24h 49m

2 stops

SDF8:09 pmLouisville Intl

$2,179

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 2/4

5:35 am-8:30 am

2 stops34h 55m

Sydney Kingsford Smith

Wed 2/11

10:40 am-5:01 pm

2 stops22h 21m

$1,169

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 5/4

11:01 am-6:35 am

2 stops29h 34m

Sydney Kingsford Smith

Sun 5/17

9:15 am-11:59 pm

2 stops28h 44m

$1,170

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

3:05 pm-7:30 am

2 stops25h 25m

Sydney Kingsford Smith

Sun 4/5

9:15 am-10:43 pm

2 stops27h 28m

$1,220

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Fri 2/6

7:00 am-8:30 am

2 stops33h 30m

Sydney Kingsford Smith

Fri 2/13

10:40 am-7:02 pm

2 stops24h 22m

$1,270

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 2/14

9:15 am-7:00 am

1 stop29h 45m

Sydney Kingsford Smith

Wed 2/18

11:50 am-7:51 pm

1 stop24h 01m

$1,273

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 2/14

3:15 pm-9:15 am

2 stops26h 00m

Sydney Kingsford Smith

Wed 2/18

12:10 pm-8:09 pm

2 stops23h 59m

$1,277

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 3/9

9:15 am-7:00 am

1 stop30h 45m

Sydney Kingsford Smith

Mon 3/30

11:20 am-2:31 pm

2 stops42h 11m

$1,282

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 3/9

3:30 pm-9:05 am

2 stops26h 35m

Sydney Kingsford Smith

Mon 3/30

10:30 am-10:39 pm

2 stops51h 09m

$1,286

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 3/9

3:30 pm-7:00 am

1 stop24h 30m

Sydney Kingsford Smith

Mon 3/30

11:20 am-2:31 pm

1 stop42h 11m

$1,292

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 3/19

1:58 pm-9:15 am

2 stops28h 17m

Sydney Kingsford Smith

Sun 4/5

9:30 am-10:39 pm

2 stops27h 09m

$1,369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Sydney?

In general, November is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,142. If you are unable to visit Sydney during the month of November, then departing from Louisville during the month June is also very affordable. Most momondo users find prices during this month for around $1,229.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time	23h 30m
Direct flights	None

The fastest flight from Louisville to Sydney takes 23h 30m

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

Search flight deals

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 23h 30m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of January 2026.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (72% of total bookings). The next most popular airline is Delta (28%).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $930	Free Cancellation	Rating 7.4 9,139 reviews		Search United Airlines flights
Delta	PriceFrom $979	Free Cancellation	Rating 7.9 8,025 reviews		Search Delta flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Manly

Cronulla

Lithgow

Penrith

Leura

Charlestown

Terrigal

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.